diff --git a/package.json b/package.json
index 1f61410..f6468a1 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "babel-plugin-macros": "^2.4.2",
     "babel-plugin-transform-async-to-promises": "^0.8.12",
     "babel-plugin-transform-replace-expressions": "^0.2.0",
-    "brotli-size": "^3.0.1",
+    "brotli-size": "^4.0.0",
     "camelcase": "^5.3.1",
     "cssnano": "^4.1.10",
     "es6-promisify": "^6.0.1",